Buckle.



PATENTED APR.16, 1907.

I. BLUM. BUCKLE.

APPLIOATION FILED JAN. 21, 1901.

V witnesses UNITED STATES PATENT. OFFICE.

ISAAC UM 0F BALTIMORE, MARYLAND, ASSIGNOR TO ALMA 'MANUFA Q." TUBING COMPANY or BALTIMORE CITY, or BALTIMORE,

A CORPORATION -or MARYLAND.

BUCKLE.

museums.

To all whom) it may concern:

Be it known that I, IsAAo BLUM, a citizen Buckles, offwhich the following is a full, clear, and exact description.

This invention relates to abuckle without movable arts'and secured to the (garment or other article to which it is applie by means of an attached strap and adapted to receive another strap inan adjustable way, said strap being secured in adjusted position with relation to the buckle by being bent through the buckle and engaging it thus and by means of teeth or prongs on the buckle, so that only theframe of the buckle is exposed when in use.

The invention connsists of a buckle wherein the frame is composed of side bars and end .bars of concave-convex cross-section, with intermediate cross-bars projecting, respectively, above and below the side bars and end bars, said cross-bars being flat and one of the end bars provided with teeth of difierent length to thereby insure the positive engagement of the adjusting member of the strapfastening, the frame, cross-bars, and teeth all being integral, as I will proceed now more particularly to set forth and finally claim.

In the accompanying drawings, illustrating the invention, 1n the several figures of which like parts are similarly designated, Figure 1 is a perspective view. Fig. 2 is a top plan View. Fig. '3 is a central longitudinal section; Fig. 4 is a longitudinal section taken between the side bar and the first tooth next to it and showing by dotted lines the application ofthe strap fastening; Fig. 5is a transverse section taken between the end bar and the next cross-bar farthest from the -teeth and looking in the directionof the teeth. i

The side bars 1 and end bars 2 and 3 are of concavoconvex conformation,- and the end bar 3 is provided with any number of teeth 4 and 5, one of the teeth, preferably the central one 5, being longer than the others in order to insure positive engagement with the strap as the latter is im aled upon the teeth. Be-

bars are cross-bars 6 and 7, made flat and the former depressed below the level of the side bars and end bars and Bpeciflcation of Letters Patent. Application filed January 2i, 1907. Serial No. 353,286.

Patented Apr-n 1c, 1907.

the latter elevated above the level of the side bars and end.bars.

The cross-bar 6, as shown by dotted lines in Fig. 4, has the stationary strap 8 looped around it and sewed or otherwise attache to it. The'adj'ustable strap 9 is passed beneath the end bar 3'and up over the cross-bar 7 and cross-bare and then down between thcrossbar 6 and the end bar 2 and engaged by the teeth 4 and 5, this engagement by the teeth and the bending of the strap over the crossbar 7 and over the loop of the strap 8 and down between the strap 8 and the endbar 2 serving to put a bight 1n the strap, whichin connection with the curved edges of the end bars, insures the positive retention of the strap 9 in any given adjusted position. To

It will be noticed that when the strap ends are in place the cross-bars and the teeth are wholly concealed, and no 1portion of the buckle is visible excepting tie frame propernamely, the side bars l-andjthefend'bars 2 and 3'and thus a very inconspicuous and' very sightly buckle is produced. There are ,no movable parts to get out of order or break and no tongues projectingin such way as to catch on contiguous surfaces.

The buckle may be conveniently manufac readjust the strap 9, its free end is pushed tured by stamping or otherwise producing'it from sheet-steel'and otherwise finishing.

It will be observed that the teeth project inwardly from the outer edgeof the end bar 3 plating or polishing or and extend downwardly or awa from the face of thejbuckle, so as to avoi an sharp plrojections or e when in use.

Making the parts of the frame of concavoconvex cross-section admits of the buckle .being made of com arativelythin material and yet great strengt and also adds to the ornamental appearance of the buckle. Thedepressing and elevating of the respective cross-bars makes arches 10f "them to stiffen or brace the side bars and making them flat inpoints on the face of t e bucsures the least possible thickness of loop in the stationary strap and prevents any undue having strap-engaging teeth pro jeeting from projection oftheadjustable strap.

As clearly indicated in the sectional views, l within the space bounded by the planesin the points of the teeth are Wholly within the which are the upper and lower edges of the space between the planes in which are the frame, and intermediate fiat cross-bars, one top and bottom edges of the side bars and of which is depressed below the level of'the end bars of the frame, and therefore there is a frame and the other elevated above the level no projection of sharp points beyond the of the frame. buckle that would endanger the user in ad- In testimony whereof I have hereunto set jnsting it or endanger adjacent articles when my hand this 19th day of January, A. D.

in use. i 1907.

What I claim is t ISAAC BLUM. A buckle, consisting of a frame composed E Witnesses;

of side bars and end bars of concavo-convex I II. KERNGOOD, shape 1n cross-section, one of the end bars BENJ. F. I-IEcH.

its inner edge backwardlywith their points 

